Compare air and helium as cooling media for electronic devices. Both fluids must exit through an area of 0.025 m^2. The exit temp is limited to 60 c the inlet temp can be as low as 10 c and as high as 25 c . Heat is released at a rate of 1 kW. The inlet area is so large that the inlet velocity is negligible. Treat both helium ans air as ideal gasses.